59% (2010)

62% (2021)

54% (1978)

66% (1975)

65% (1996)

41% (1970)

63% (1978)

71% (1999)

67% (1992)

52% (1982)

71% (1997)

61% (2023)

59% (2008)

59% (2013)

68% (1981)

75% (2005)

57% (2017)

70% (1999)

66% (1953)

75% (1996)